Why deploy BOTH/all air bags?
Why deploy BOTH/all air bags?
Author
Discussion

HertsBiker

Original Poster:

6,443 posts

299 months

Sunday 27th February 2011
quotequote all
...when there is only the driver? is this a manufacturers con trick to make repairs more expensive?


maniac0796

1,292 posts

194 months

Sunday 27th February 2011
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Most modern systems will only deploy airbags that are needed. So, if you have a full front crash, the front ones will eject. If you have a side on, only side ones will eject.

jimbobsimmonds

1,824 posts

193 months

Sunday 27th February 2011
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HertsBiker said:
...when there is only the driver? is this a manufacturers con trick to make repairs more expensive?
Yes, I would have thought that my car being able to tell there is a front passenger and bonging at me until they put their belt on it would be able to tell not to deploy the airbags...

Maybe it does. I don't want to find out...

WeirdNeville

6,043 posts

243 months

Sunday 27th February 2011
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They tend not to.
The airbag control computer analyses data as the crash happens and decides whether to deploy specific airbags or not. Even a high speed crash may not result in airbag deployment if the forces aren't high enough.
Airbag deployment carries it's own risk -passengers can be burnt by them. It's also in the manufacturers interest NOT to deploy all the airbags in every accident: the costs with replacing parhaps 6-12 airbags from a minor shunt would push the car up a few insurance groups, and make it less desirable.

Generally modern cars will deploy only the airbags required. If it deploys all of them, then the increased repair cost is likely to be offset by the lower personal injury cost. If a cars been that well crashed, I'm not sure it should be back on the road anyway.

I don't know why you think every air bag does go off? Source?

Deano_BMW

430 posts

214 months

Sunday 27th February 2011
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lots of modern cars also have occupancy sensors. if they dont detect a passenger then the pass airbag wont go off etc.

Jasandjules

72,441 posts

257 months

Sunday 27th February 2011
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HertsBiker said:
...when there is only the driver? is this a manufacturers con trick to make repairs more expensive?
I'd rather have all airbags deploy and not be needed that not have an airbag deploy which is needed....... Plus I would have hoped they could also assist with flying glass etc.

rustyveedub

107 posts

240 months

Sunday 27th February 2011
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I went to a a collision a week ago where a new Mondeo was t-boned, the only occupant being the driver. Both front air-bags deployed peeling/buring the skin from the insides of both forearm's. It looked like it smarted a bit.

john_p

7,073 posts

278 months

Sunday 27th February 2011
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Isn't that how a lot of drunk drivers get caught out?

seagrey

385 posts

193 months

Sunday 27th February 2011
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If you have a crash that has required airbags then the last thing you should be worrying about is the car.
Rather a costly repair than a face full of steering wheel and instrument panel.
Just be thankful that they are there and prey you never need them and then if you do that they do their job.
Id prefer that they all be out,if I`m bouncing around the inside airbags are softer than dashboards and door panels.
my volvo has umpteen,if I crash hard enough I could probably die from air displacemantsmile

Ibizahoo2

630 posts

186 months

Sunday 27th February 2011
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to be honest if i was in a crash that set off the airbags i wouldnt really care if an unnecesary one went off!